react native websocket usesse
// websocketUtils.ts
export const useSession = (
onOpen: OpenHandler,
onMessage: MessageHandler,
onClose: CloseHandler
): SessionHook => {
const [session, setSession] = useState(null as unkown as Websocket);
const updateOpenHandler = () => {
if (!session) return;
session.addEventListener('open', onOpen);
return () => {
session.removeEventListener('open', onOpen);
};
};
const updateMessageHandler = () => {
if (!session) return;
session.addEventListener('message', onMessage);
return () => {
session.removeEventListener('message', onMessage);
};
};
const updateCloseHandler = () => {
if (!session) return;
session.addEventListener('close', onClose);
return () => {
session.removeEventListener('close', onClose);
};
};
useEffect(updateOpenHandler, [session, onOpen]);
useEffect(updateMessageHandler, [session, onMessage]);
useEffect(updateCloseHandler, [session, onClose]);
.... // connect, sendMessage utils
}
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